Windows Defender blocking Vivaldi
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I've been using Vivaldi for many months - without issue
All of a sudden, Windows Defender is blocking vivaldi
I add Vivaldi app data to the exclusions and it made no
difference.Will really appreciate assistance... Vivaldi is my favourite
browserthanks
Karen -
windows7 + defender make no problems, so eventually you have windows 10?
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No problems with Defender here - Win 10 Pro (64 bit)
Using Vivaldi 1.14 Stable (32 bit) and 1.15 Snapshot (64 bit). -
Sorry - yes - Windows 10/64 Pro - been using Vivaldi for many
months on 3 computers... this is the first time with a problemThis morning, I was downloading video from Pixabay and
Vivaldi browser went completely black. I couldn't see anything
so had to just close the browser...I checked to see if there was a Vivaldi update and my browser
is current.I think that i rebooted my computer and when I started the
browser again, it just closed and kept closing each timeI clicked "run as administrator" and that's when i saw the
Windows Defender notice..Virus and Threat Protection
Unauthorized changes blocked
Controlled Folder Access blocked C:
\Program ...\Dropbox.exe from making
changes to the folder %userprofile%
\Desktopanother one reads the same as above -
except for \Dropbox.exe...it reads \pi.exe
I have absolutely NO idea what that means
or how it relates to VivaldiWill greatly appreciate some insight/input
Thanks
Karen -
The Threat Alert displays Trojan: Win32/Tiggre!rfn
could that have been downloaded with Vivaldi?
Karen
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"Controlled Folder Access" is a new feature in the latest versions of windows 10, and I don't believe it is turned on by default.
You use it to write-"protect" access to certain folders to prevent things like crypto lockers from changing them. It means that you need to manually whitelist any files that try to use that directory.
You'll need to verify which folders are listed under "controlled folder access" in defender, and if vivaldi (or dropbox, as in your example) wants to write there, you'll need to manually whitelist
vivaldi.exe
Additional note: I believe the exclusions from controlled folder access are different to the general defender exclusions.
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@ThisProductRocks, the question arises as to why the website was attempting to download something(s) onto your Windows user-account's desktop folder in the first place. That is apparently a CFA-protected folder (at least on your system) and that action is what the 'error' messages are flagging. The actions are being re-flagged each time you've tried to restart Vivaldi, since they have been stored in the tabs/sessions files of Vivaldi and attempt to reassert upon each Vivaldi restart. Whether the detected Trojan malware is valid or a false-positive is its own issue. At this point, you need to clear out the Vivaldi tabs and sessions files as @Gwen-Dragon suggests in order to be able to cleanly restart Vivaldi without re-triggering the Windows blocking actions.
Then you need to establish whether the intended download is clean or infected, and whether in the future you want such things coming directly to your desktop (in which case, you need to create a whitelist exception in the CFA listing for the program(s) - keeping in mind that such whitelisting will thereafter always allow the whitelisted program(s) unfettered access to files in your desktop folder).
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@gwen-dragon .... thank you.... I followed your directions and
Vivaldi still closes immediatelyKaren
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@lonm thank you...
I'm not aware of/remembering turning the "controlled folder access" option on...
and, it was activated. I had already added vivaldi and went back and added
vivaldi.exeRebooted my computer and Vivaldi works!!!!!!!!!!!!!!!!!!!!!
Thank you everyone for your help... can't / don't want to try working without
VivaldiKaren
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@thisproductrocks oh well....
Vivaldi stayed running for a few minutes... and it's closing immediately again
any other recommendations???
thanks
Karen -
Have you checked with Windows Defender again to see if there are different blocking messages there now?
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@blackbird I checked Windows Defender and there is no longer any
messages at all. just won't allow Vivaldi to startthanks
Karen -
@thisproductrocks Try refreshing your profile altogether and see if that makes any difference.
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I just spent almost two hours with a Windows tech person - working
remotely on my computerHe went through all of the defender settings... added/changed settings...
Rebooted several times... after each reboot, Vivaldi would start and sit -
open - for quite some time... when I minimized the browser to taskbar,
it would shut down.Anyone else have any ideas?
Thank you many bunches
Karen
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Vivaldi is installed on two of my other computers as well -
all with Windows 10/64 ProAll of the browsers had exactly the same extensions installed on
them.I had used OneTab to close/save all of the open links and when
restarted, that's all that shows up - the onetab pages.once again, Vivaldi does not stay open long enough to do anything
at all...This is such an awesome browser
thank you
Karen -
Vivaldi is working perfectly on my other two computers
I just rebooted my PC again and was able to restart Vivaldi
This time I disabled all but two extensions (had 7)
will leave it alone now to see if it continues to run
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Well, that didn't take long... I tried to move the browser and it closed
the two extensions i left open were lastpass and onetab
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@thisproductrocks In trying to figure out what may differ between your computers and the Vivaldi behavior on them, several possibilities exist:
- Are all computers running the same version of Windows 10 (ie, are they all running the Fall Creator's Update)?
- Is the problem system using a different graphics system than the other two, and if so, what is the graphics card?
- Is the problem system using different antimalware/AV programs from the other two, and if so, what is it using?
- Is Vivaldi on the problem system set up differently than the other two (ie: is it multi-user account vs. single-user, limited user vs. admin user, etc)?
- Does the problem system contain less RAM than the other two systems?
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@thisproductrocks Did you, as I suggested, try refreshing your profile altogether and see if that makes any difference? Please read the linked post. This is NOT a reinstall.
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- all computers are running the same version of Windows 10 (Build 16299)
- all of the computers have different graphics - the problem PC has Intel(R) HD Graphics
(other two- ATI Radeon 3000 Graphics and AMD Radeon HD 6450) <--both with 16 GB RAM - all computers are using Windows Defender
- Vivaldi was set up on all computers to run for anyone using the computer
(and I'm the only one who uses these computers) - The problem computer only has 8GB of ram and the others have 16 GB